02GF74
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| posted on 28/3/09 at 06:44 PM |
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what welder are you using to join 3 mm mild steel?
Today I've been playing with my clarke 120 after fitting the welding clamp and seems I can make good joins on two pieces of 2 mm steel (total 4
mm).
The motor stalling problem appears to be due to the wire roll being too tight - I used a file to open the hole out and the stalling has not
occured.
BUT
I am struggling to join two pieces of 3 mm with good penetration. (both butt join and T join)
So which welder have you used to join 3 mm mild steel?
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Danozeman
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| posted on 28/3/09 at 06:49 PM |
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My sip 130 turbo will weld 3mm. Power up and wire speed down a bit.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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BenB
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| posted on 28/3/09 at 06:51 PM |
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http://www.mig-welding.co.uk/calculator.htm
says it should do up to 3.2mm (without V notching)
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smart51
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| posted on 28/3/09 at 07:04 PM |
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I'd do it with my 100A welder on full. Perhaps not ideal but its the only one I have. Weld the join from both sides and you should get full
penetration. The trouble is you'd have to take it slow to build up heat in the part which could lead to distortion once it cools so I'd
weld a bit at one end and let it cool then weld a bit at the other and let it cool then weld a bit in the middle ...
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blakep82
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| posted on 28/3/09 at 07:05 PM |
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ah! it was you! you could get those clamp fittings from the car audio bit in halfords.... but you've done that now...
clarke 151te can weld 3mm easy wnough. i'd have thought yours would too?
________________________
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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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02GF74
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| posted on 28/3/09 at 08:56 PM |
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interesting replies....
I am using 0.6 mm wire (feeder can do 0.8 mm but I don't have any), wire speed is 7/10.
Would using 0.8 mm wire help?
I would be welding a square tube onto end plates so not possible to weld from inside.
I investigated my test T weld pieces. I cut through the weld and polished it up and cannot see any sign of a join; also tried to hammer and then
chisel off the piece; part of it came away, near the edge but not the rest.
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Dangle_kt
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| posted on 28/3/09 at 09:36 PM |
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any root gap? What about V ing?
Personally I'd arc weld it - no worries over penetration then!
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eric10
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| posted on 28/3/09 at 10:10 PM |
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I go for an Arc far easier and a Clarke one isn't that expensive. But I'm old fashioned I use arc or gas.
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mad-butcher
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| posted on 29/3/09 at 06:29 AM |
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arc
tony
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splitrivet
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| posted on 29/3/09 at 10:04 AM |
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I'd go Arc as well, faster and less faffing about.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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